Danfoss VLT AutomationDrive FC 301 Programming Manual page 360

Troubleshooting
Troubleshooting
•
Remove power to the frequency converter and
repair the ground fault.
•
Check for ground faults in the motor by
measuring the resistance to ground of the motor
cables and the motor with a megohmmeter.
•
Reset any potential individual offset in the 3
current transducers in the frequency converter.
Perform the manual initialization or perform a
complete AMA. This method is most relevant
after changing the power card.
ALARM 15, Hardware mismatch
A fitted option is not operational with the present control
card hardware or software.
6 6
Record the value of the following parameters and contact
Danfoss.
•
Parameter 15-40 FC Type.
•
Parameter 15-41 Power Section.
•
Parameter 15-42 Voltage.
•
Parameter 15-43 Software Version.
•
Parameter 15-45 Actual Typecode String.
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Parameter 15-49 SW ID Control Card.
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Parameter 15-50 SW ID Power Card.
•
Parameter 15-60 Option Mounted.
•
Parameter 15-61 Option SW Version (for each
option slot).
ALARM 16, Short circuit
There is short-circuiting in the motor or motor wiring.
Troubleshooting
•
Remove the power to the frequency converter
and repair the short circuit.
WARNING
HIGH VOLTAGE
Frequency converters contain high voltage when
connected to AC mains input, DC supply, or load sharing.
Failure to use qualified personnel to install, start up, and
maintain the frequency converter can result in death or
serious injury.
•
Disconnect power before proceeding.
WARNING/ALARM 17, Control word timeout
There is no communication to the frequency converter.
The warning is only active when parameter 8-04 Control
Word Timeout Function is NOT set to [0] Off.
If parameter 8-04 Control Word Timeout Function is set to [5]
Stop and trip, a warning appears, and the frequency
converter ramps down to a stop and shows an alarm.
358
®
VLT AutomationDrive FC 301/302
Troubleshooting
•
•
•
•
WARNING/ALARM 20, Temp. input error
The temperature sensor is not connected.
WARNING/ALARM 21, Parameter error
The parameter is out of range. The parameter number is
shown in the display.
Troubleshooting
•
WARNING/ALARM 22, Hoist mechanical brake
The value of this warning/alarm indicates the cause:.
0 = The torque reference was not reached before timeout
(parameter 2-27 Torque Ramp Up Time).
1 = Expected brake feedback was not received before
timeout (parameter 2-23 Activate Brake Delay,
parameter 2-25 Brake Release Time).
WARNING 23, Internal fan fault
The fan warning function is a protective function that
checks if the fan is running/mounted. The fan warning can
be disabled in parameter 14-53 Fan Monitor ([0] Disabled).
For drives with DC fans, a feedback sensor is mounted in
the fan. If the fan is commanded to run and there is no
feedback from the sensor, this alarm appears. For drives
with AC fans, the voltage to the fan is monitored.
Troubleshooting
•
•
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WARNING 24, External fan fault
The fan warning function is a protective function that
checks if the fan is running/mounted. The fan warning can
be disabled in parameter 14-53 Fan Monitor ([0] Disabled).
For drives with DC fans, a feedback sensor is mounted in
the fan. If the fan is commanded to run and there is no
feedback from the sensor, this alarm appears. For drives
with AC fans, the voltage to the fan is monitored.
Troubleshooting
•
•
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Danfoss A/S © 10/2019 All rights reserved.
Check the connections on the serial communi-
cation cable.
Increase parameter 8-03 Control Word Timeout
Time.
Check the operation of the communication
equipment.
Verify that proper EMC installation was
performed.
Set the affected parameter to a valid value.
Check for proper fan operation.
Cycle power to the drive and check that the fan
operates briefly at start-up.
Check the sensors on the control card.
Check for proper fan operation.
Cycle power to the drive and check that the fan
operates briefly at start-up.
Check the sensors on the heat sink.
M0013101